A portable negative-pressure device includes a negative-pressure storage chamber and a vacuum suction pump, wherein the negative-pressure storage chamber is a closed chamber having a fluid inlet connected to a tube of a negative-pressure wound dressing and a fluid outlet having a check valve, and the vacuum suction pump includes a piston rod, an exhaust port and a suction port which is movably connected with the fluid outlet of the negative pressure storage chamber, wherein the piston of the piston rod is a bowl-shaped check valve.本新型係有關於一種攜帶型負壓裝置,其包含一負壓儲存室以及一抽氣唧筒。該負壓儲存室為具有一流體入口與一流體出口之封閉腔室,該流體入口係與一負壓傷口敷料之管路連接,該流體出口具有一單向閥。該抽氣唧筒包含一活塞拉桿,一抽氣口與一排氣口,該抽氣口為活動式地與該負壓儲存室之流體出口連接,其中,該活塞拉桿之活塞係為碗型單向閥。1‧‧‧攜帶型負壓裝置2‧‧‧負壓儲存室2a‧‧‧流體入口2b‧‧‧流體出口3‧‧‧負壓傷口敷料31‧‧‧管路4‧‧‧單向閥5‧‧‧抽氣唧筒5a‧‧‧抽氣口5b‧‧‧排氣口6‧‧‧活塞拉桿61‧‧‧活塞
